Extron electronics APP Manual de usuario Pagina 31

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Cable Selection – Image Quality
• Contributors to digital
signal degradation
• Digital signal recovery is
based on receiver
’
s ability
signal
degradation
• Cable attenuation - length/quality
• Cable capacitance - length/quality
•Im
p
edance mismatch - connectors
based
on
receiver s
ability
to distinguish high and
low transitions
El dt it
p
• Noise coupling - cabling/products
• Crosstalk and jitter -
cabling/environment
•
E
ye c
l
oses
d
ue
t
o res
i
s
t
ance
and capacitance
• Transitions widen due to reflections,
noise, and crosstalk
• Result: bit errors
Digital System
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